Eintrag weiter verarbeiten
Singlet–Triplet Splitting Energy Management via Acceptor Substitution: Complanation Molecular Design for Deep‐Blue Thermally Activated Delayed Fluorescence Emitters and Organic Lig...
Gespeichert in:
| Zeitschriftentitel: | Advanced Functional Materials |
|---|---|
| Personen und Körperschaften: | , , , , |
| In: | Advanced Functional Materials, 26, 2016, 44, S. 8042-8052 |
| Medientyp: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Wiley
|
| Schlagwörter: |
| author_facet |
Cai, Xinyi Gao, Bin Li, Xiang‐Long Cao, Yong Su, Shi‐Jian Cai, Xinyi Gao, Bin Li, Xiang‐Long Cao, Yong Su, Shi‐Jian |
|---|---|
| author |
Cai, Xinyi Gao, Bin Li, Xiang‐Long Cao, Yong Su, Shi‐Jian |
| spellingShingle |
Cai, Xinyi Gao, Bin Li, Xiang‐Long Cao, Yong Su, Shi‐Jian Advanced Functional Materials Singlet–Triplet Splitting Energy Management via Acceptor Substitution: Complanation Molecular Design for Deep‐Blue Thermally Activated Delayed Fluorescence Emitters and Organic Light‐Emitting Diodes Application Electrochemistry Condensed Matter Physics Biomaterials Electronic, Optical and Magnetic Materials |
| author_sort |
cai, xinyi |
| spelling |
Cai, Xinyi Gao, Bin Li, Xiang‐Long Cao, Yong Su, Shi‐Jian 1616-301X 1616-3028 Wiley Electrochemistry Condensed Matter Physics Biomaterials Electronic, Optical and Magnetic Materials http://dx.doi.org/10.1002/adfm.201603520 <jats:p>A barely reached balance between weak intramolecular‐charge‐transfer (ICT) and small singlet–triplet splitting energy (ΔE<jats:sub>ST</jats:sub>) for reverse intersystem crossing from non‐emissive triplet state to radiative singlet state impedes the realization of deep‐blue thermally activated delayed fluorescence (TADF) materials. By discarding the twisted‐ICT framework for a flattened molecular backbone and introducing a strong acceptor possessing n–π* transition character, hypsochromic color, a large radiative rate (k<jats:sub>F</jats:sub>), and small ΔE<jats:sub>ST</jats:sub> are achieved simultaneously. Six molecules with a 9,9‐dimethyl‐10‐phenyl‐9,10‐dihydroacridine (i‐DMAc) donor are synthesized and investigated. Coinciding with time‐dependent density functional theory, the reduced dihedral angles between donor (D) and acceptor (A) weaken ICT from dispersed charge density and enable a large k<jats:sub>F</jats:sub> from increased frontier molecular orbitals overlap. Despite the separated highest occupied (HOMO) and lowest unoccupied molecular orbital (LUMO) population, the intercalation of phenyl bridges between D–A increases k<jats:sub>F</jats:sub> but significantly lowers the local triplet excited state, indicating small HOMO and LUMO overlap is not a sufficient, but necessary condition for reduced ΔE<jats:sub>ST</jats:sub>. Integrating short conjugation length and carbonyl or triazine acceptors into the complanation molecules, deep‐blue TADF organic light‐emitting diodes demonstrate maximum external quantum efficiencies of 11.5% and 10.9% with Commission Internationale de l'Eclairage coordinates of (0.16, 0.09) and (0.15, 0.11), respectively, which is quite close to the stringent National Television System Committee blue standard.</jats:p> Singlet–Triplet Splitting Energy Management via Acceptor Substitution: Complanation Molecular Design for Deep‐Blue Thermally Activated Delayed Fluorescence Emitters and Organic Light‐Emitting Diodes Application Advanced Functional Materials |
| doi_str_mv |
10.1002/adfm.201603520 |
| facet_avail |
Online |
| finc_class_facet |
Technik Physik Chemie und Pharmazie Biologie |
| format |
ElectronicArticle |
| fullrecord |
blob:ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTAwMi9hZGZtLjIwMTYwMzUyMA |
| id |
ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTAwMi9hZGZtLjIwMTYwMzUyMA |
| institution |
DE-Bn3 DE-Brt1 DE-D161 DE-Gla1 DE-Zi4 DE-15 DE-Pl11 DE-Rs1 DE-105 DE-14 DE-Ch1 DE-L229 DE-D275 |
| imprint |
Wiley, 2016 |
| imprint_str_mv |
Wiley, 2016 |
| issn |
1616-3028 1616-301X |
| issn_str_mv |
1616-3028 1616-301X |
| language |
English |
| mega_collection |
Wiley (CrossRef) |
| match_str |
cai2016singlettripletsplittingenergymanagementviaacceptorsubstitutioncomplanationmoleculardesignfordeepbluethermallyactivateddelayedfluorescenceemittersandorganiclightemittingdiodesapplication |
| publishDateSort |
2016 |
| publisher |
Wiley |
| recordtype |
ai |
| record_format |
ai |
| series |
Advanced Functional Materials |
| source_id |
49 |
| title |
Singlet–Triplet Splitting Energy Management via Acceptor Substitution: Complanation Molecular Design for Deep‐Blue Thermally Activated Delayed Fluorescence Emitters and Organic Light‐Emitting Diodes Application |
| title_unstemmed |
Singlet–Triplet Splitting Energy Management via Acceptor Substitution: Complanation Molecular Design for Deep‐Blue Thermally Activated Delayed Fluorescence Emitters and Organic Light‐Emitting Diodes Application |
| title_full |
Singlet–Triplet Splitting Energy Management via Acceptor Substitution: Complanation Molecular Design for Deep‐Blue Thermally Activated Delayed Fluorescence Emitters and Organic Light‐Emitting Diodes Application |
| title_fullStr |
Singlet–Triplet Splitting Energy Management via Acceptor Substitution: Complanation Molecular Design for Deep‐Blue Thermally Activated Delayed Fluorescence Emitters and Organic Light‐Emitting Diodes Application |
| title_full_unstemmed |
Singlet–Triplet Splitting Energy Management via Acceptor Substitution: Complanation Molecular Design for Deep‐Blue Thermally Activated Delayed Fluorescence Emitters and Organic Light‐Emitting Diodes Application |
| title_short |
Singlet–Triplet Splitting Energy Management via Acceptor Substitution: Complanation Molecular Design for Deep‐Blue Thermally Activated Delayed Fluorescence Emitters and Organic Light‐Emitting Diodes Application |
| title_sort |
singlet–triplet splitting energy management via acceptor substitution: complanation molecular design for deep‐blue thermally activated delayed fluorescence emitters and organic light‐emitting diodes application |
| topic |
Electrochemistry Condensed Matter Physics Biomaterials Electronic, Optical and Magnetic Materials |
| url |
http://dx.doi.org/10.1002/adfm.201603520 |
| publishDate |
2016 |
| physical |
8042-8052 |
| description |
<jats:p>A barely reached balance between weak intramolecular‐charge‐transfer (ICT) and small singlet–triplet splitting energy (ΔE<jats:sub>ST</jats:sub>) for reverse intersystem crossing from non‐emissive triplet state to radiative singlet state impedes the realization of deep‐blue thermally activated delayed fluorescence (TADF) materials. By discarding the twisted‐ICT framework for a flattened molecular backbone and introducing a strong acceptor possessing n–π* transition character, hypsochromic color, a large radiative rate (k<jats:sub>F</jats:sub>), and small ΔE<jats:sub>ST</jats:sub> are achieved simultaneously. Six molecules with a 9,9‐dimethyl‐10‐phenyl‐9,10‐dihydroacridine (i‐DMAc) donor are synthesized and investigated. Coinciding with time‐dependent density functional theory, the reduced dihedral angles between donor (D) and acceptor (A) weaken ICT from dispersed charge density and enable a large k<jats:sub>F</jats:sub> from increased frontier molecular orbitals overlap. Despite the separated highest occupied (HOMO) and lowest unoccupied molecular orbital (LUMO) population, the intercalation of phenyl bridges between D–A increases k<jats:sub>F</jats:sub> but significantly lowers the local triplet excited state, indicating small HOMO and LUMO overlap is not a sufficient, but necessary condition for reduced ΔE<jats:sub>ST</jats:sub>. Integrating short conjugation length and carbonyl or triazine acceptors into the complanation molecules, deep‐blue TADF organic light‐emitting diodes demonstrate maximum external quantum efficiencies of 11.5% and 10.9% with Commission Internationale de l'Eclairage coordinates of (0.16, 0.09) and (0.15, 0.11), respectively, which is quite close to the stringent National Television System Committee blue standard.</jats:p> |
| container_issue |
44 |
| container_start_page |
8042 |
| container_title |
Advanced Functional Materials |
| container_volume |
26 |
| format_de105 |
Article, E-Article |
| format_de14 |
Article, E-Article |
| format_de15 |
Article, E-Article |
| format_de520 |
Article, E-Article |
| format_de540 |
Article, E-Article |
| format_dech1 |
Article, E-Article |
| format_ded117 |
Article, E-Article |
| format_degla1 |
E-Article |
| format_del152 |
Buch |
| format_del189 |
Article, E-Article |
| format_dezi4 |
Article |
| format_dezwi2 |
Article, E-Article |
| format_finc |
Article, E-Article |
| format_nrw |
Article, E-Article |
| _version_ |
1792346385257857026 |
| geogr_code |
not assigned |
| last_indexed |
2024-03-01T17:38:33.516Z |
| geogr_code_person |
not assigned |
| openURL |
url_ver=Z39.88-2004&ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fvufind.svn.sourceforge.net%3Agenerator&rft.title=Singlet%E2%80%93Triplet+Splitting+Energy+Management+via+Acceptor+Substitution%3A+Complanation+Molecular+Design+for+Deep%E2%80%90Blue+Thermally+Activated+Delayed+Fluorescence+Emitters+and+Organic+Light%E2%80%90Emitting+Diodes+Application&rft.date=2016-11-01&genre=article&issn=1616-3028&volume=26&issue=44&spage=8042&epage=8052&pages=8042-8052&jtitle=Advanced+Functional+Materials&atitle=Singlet%E2%80%93Triplet+Splitting+Energy+Management+via+Acceptor+Substitution%3A+Complanation+Molecular+Design+for+Deep%E2%80%90Blue+Thermally+Activated+Delayed+Fluorescence+Emitters+and+Organic+Light%E2%80%90Emitting+Diodes+Application&aulast=Su&aufirst=Shi%E2%80%90Jian&rft_id=info%3Adoi%2F10.1002%2Fadfm.201603520&rft.language%5B0%5D=eng |
| SOLR | |
| _version_ | 1792346385257857026 |
| author | Cai, Xinyi, Gao, Bin, Li, Xiang‐Long, Cao, Yong, Su, Shi‐Jian |
| author_facet | Cai, Xinyi, Gao, Bin, Li, Xiang‐Long, Cao, Yong, Su, Shi‐Jian, Cai, Xinyi, Gao, Bin, Li, Xiang‐Long, Cao, Yong, Su, Shi‐Jian |
| author_sort | cai, xinyi |
| container_issue | 44 |
| container_start_page | 8042 |
| container_title | Advanced Functional Materials |
| container_volume | 26 |
| description | <jats:p>A barely reached balance between weak intramolecular‐charge‐transfer (ICT) and small singlet–triplet splitting energy (ΔE<jats:sub>ST</jats:sub>) for reverse intersystem crossing from non‐emissive triplet state to radiative singlet state impedes the realization of deep‐blue thermally activated delayed fluorescence (TADF) materials. By discarding the twisted‐ICT framework for a flattened molecular backbone and introducing a strong acceptor possessing n–π* transition character, hypsochromic color, a large radiative rate (k<jats:sub>F</jats:sub>), and small ΔE<jats:sub>ST</jats:sub> are achieved simultaneously. Six molecules with a 9,9‐dimethyl‐10‐phenyl‐9,10‐dihydroacridine (i‐DMAc) donor are synthesized and investigated. Coinciding with time‐dependent density functional theory, the reduced dihedral angles between donor (D) and acceptor (A) weaken ICT from dispersed charge density and enable a large k<jats:sub>F</jats:sub> from increased frontier molecular orbitals overlap. Despite the separated highest occupied (HOMO) and lowest unoccupied molecular orbital (LUMO) population, the intercalation of phenyl bridges between D–A increases k<jats:sub>F</jats:sub> but significantly lowers the local triplet excited state, indicating small HOMO and LUMO overlap is not a sufficient, but necessary condition for reduced ΔE<jats:sub>ST</jats:sub>. Integrating short conjugation length and carbonyl or triazine acceptors into the complanation molecules, deep‐blue TADF organic light‐emitting diodes demonstrate maximum external quantum efficiencies of 11.5% and 10.9% with Commission Internationale de l'Eclairage coordinates of (0.16, 0.09) and (0.15, 0.11), respectively, which is quite close to the stringent National Television System Committee blue standard.</jats:p> |
| doi_str_mv | 10.1002/adfm.201603520 |
| facet_avail | Online |
| finc_class_facet | Technik, Physik, Chemie und Pharmazie, Biologie |
| format | ElectronicArticle |
| format_de105 | Article, E-Article |
| format_de14 | Article, E-Article |
| format_de15 | Article, E-Article |
| format_de520 | Article, E-Article |
| format_de540 | Article, E-Article |
| format_dech1 | Article, E-Article |
| format_ded117 | Article, E-Article |
| format_degla1 | E-Article |
| format_del152 | Buch |
| format_del189 | Article, E-Article |
| format_dezi4 | Article |
| format_dezwi2 | Article, E-Article |
| format_finc | Article, E-Article |
| format_nrw | Article, E-Article |
| geogr_code | not assigned |
| geogr_code_person | not assigned |
| id | ai-49-aHR0cDovL2R4LmRvaS5vcmcvMTAuMTAwMi9hZGZtLjIwMTYwMzUyMA |
| imprint | Wiley, 2016 |
| imprint_str_mv | Wiley, 2016 |
| institution | DE-Bn3, DE-Brt1, DE-D161, DE-Gla1, DE-Zi4, DE-15, DE-Pl11, DE-Rs1, DE-105, DE-14, DE-Ch1, DE-L229, DE-D275 |
| issn | 1616-3028, 1616-301X |
| issn_str_mv | 1616-3028, 1616-301X |
| language | English |
| last_indexed | 2024-03-01T17:38:33.516Z |
| match_str | cai2016singlettripletsplittingenergymanagementviaacceptorsubstitutioncomplanationmoleculardesignfordeepbluethermallyactivateddelayedfluorescenceemittersandorganiclightemittingdiodesapplication |
| mega_collection | Wiley (CrossRef) |
| physical | 8042-8052 |
| publishDate | 2016 |
| publishDateSort | 2016 |
| publisher | Wiley |
| record_format | ai |
| recordtype | ai |
| series | Advanced Functional Materials |
| source_id | 49 |
| spelling | Cai, Xinyi Gao, Bin Li, Xiang‐Long Cao, Yong Su, Shi‐Jian 1616-301X 1616-3028 Wiley Electrochemistry Condensed Matter Physics Biomaterials Electronic, Optical and Magnetic Materials http://dx.doi.org/10.1002/adfm.201603520 <jats:p>A barely reached balance between weak intramolecular‐charge‐transfer (ICT) and small singlet–triplet splitting energy (ΔE<jats:sub>ST</jats:sub>) for reverse intersystem crossing from non‐emissive triplet state to radiative singlet state impedes the realization of deep‐blue thermally activated delayed fluorescence (TADF) materials. By discarding the twisted‐ICT framework for a flattened molecular backbone and introducing a strong acceptor possessing n–π* transition character, hypsochromic color, a large radiative rate (k<jats:sub>F</jats:sub>), and small ΔE<jats:sub>ST</jats:sub> are achieved simultaneously. Six molecules with a 9,9‐dimethyl‐10‐phenyl‐9,10‐dihydroacridine (i‐DMAc) donor are synthesized and investigated. Coinciding with time‐dependent density functional theory, the reduced dihedral angles between donor (D) and acceptor (A) weaken ICT from dispersed charge density and enable a large k<jats:sub>F</jats:sub> from increased frontier molecular orbitals overlap. Despite the separated highest occupied (HOMO) and lowest unoccupied molecular orbital (LUMO) population, the intercalation of phenyl bridges between D–A increases k<jats:sub>F</jats:sub> but significantly lowers the local triplet excited state, indicating small HOMO and LUMO overlap is not a sufficient, but necessary condition for reduced ΔE<jats:sub>ST</jats:sub>. Integrating short conjugation length and carbonyl or triazine acceptors into the complanation molecules, deep‐blue TADF organic light‐emitting diodes demonstrate maximum external quantum efficiencies of 11.5% and 10.9% with Commission Internationale de l'Eclairage coordinates of (0.16, 0.09) and (0.15, 0.11), respectively, which is quite close to the stringent National Television System Committee blue standard.</jats:p> Singlet–Triplet Splitting Energy Management via Acceptor Substitution: Complanation Molecular Design for Deep‐Blue Thermally Activated Delayed Fluorescence Emitters and Organic Light‐Emitting Diodes Application Advanced Functional Materials |
| spellingShingle | Cai, Xinyi, Gao, Bin, Li, Xiang‐Long, Cao, Yong, Su, Shi‐Jian, Advanced Functional Materials, Singlet–Triplet Splitting Energy Management via Acceptor Substitution: Complanation Molecular Design for Deep‐Blue Thermally Activated Delayed Fluorescence Emitters and Organic Light‐Emitting Diodes Application, Electrochemistry, Condensed Matter Physics, Biomaterials, Electronic, Optical and Magnetic Materials |
| title | Singlet–Triplet Splitting Energy Management via Acceptor Substitution: Complanation Molecular Design for Deep‐Blue Thermally Activated Delayed Fluorescence Emitters and Organic Light‐Emitting Diodes Application |
| title_full | Singlet–Triplet Splitting Energy Management via Acceptor Substitution: Complanation Molecular Design for Deep‐Blue Thermally Activated Delayed Fluorescence Emitters and Organic Light‐Emitting Diodes Application |
| title_fullStr | Singlet–Triplet Splitting Energy Management via Acceptor Substitution: Complanation Molecular Design for Deep‐Blue Thermally Activated Delayed Fluorescence Emitters and Organic Light‐Emitting Diodes Application |
| title_full_unstemmed | Singlet–Triplet Splitting Energy Management via Acceptor Substitution: Complanation Molecular Design for Deep‐Blue Thermally Activated Delayed Fluorescence Emitters and Organic Light‐Emitting Diodes Application |
| title_short | Singlet–Triplet Splitting Energy Management via Acceptor Substitution: Complanation Molecular Design for Deep‐Blue Thermally Activated Delayed Fluorescence Emitters and Organic Light‐Emitting Diodes Application |
| title_sort | singlet–triplet splitting energy management via acceptor substitution: complanation molecular design for deep‐blue thermally activated delayed fluorescence emitters and organic light‐emitting diodes application |
| title_unstemmed | Singlet–Triplet Splitting Energy Management via Acceptor Substitution: Complanation Molecular Design for Deep‐Blue Thermally Activated Delayed Fluorescence Emitters and Organic Light‐Emitting Diodes Application |
| topic | Electrochemistry, Condensed Matter Physics, Biomaterials, Electronic, Optical and Magnetic Materials |
| url | http://dx.doi.org/10.1002/adfm.201603520 |